Sergeant Stubby

Sergeant Stubby was a stray dog found during military training in 1917. He served with the 102nd Infantry Regiment during World War 1. He saved his regiment from surprise mustard gas attacks repeatedly due to his ability to smell mustard gas at a distance, found and comforted the wounded, and even once caught a German spy by the seat of his pants, holding him there until American soldiers found him. He is the only dog to have been promoted to sergeant through combat in World War 1.